Granted Patent
Utility
US 5,239,274 · App. 07/888,762
Voltage-controlled ring oscillator using complementary differential buffers for generating multiple phase signals
Inventor:
Kuang Chi
Patented Case
View Patent ↗
Granted: Aug 24, 1993
Filed: May 26, 1992
Inventor
Kuang Chi
Assignee (at issue)
Digital Equipment Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.